Damping type engine oil suction filter

Abstract

The utility model relates to the technical field of engine oil suction filters, and discloses a damping type engine oil suction filter which comprises a shell, a central pipe is fixedly connected in the shell, a plurality of buffer structures are arranged in the shell, a connecting structure is arranged in the shell, each buffer structure comprises a connecting pipe, the connecting pipes are fixed at the upper end of the shell, and the connecting pipes are fixed at the lower end of the shell. A plurality of circulation openings are formed in the periphery of the upper end of the shell, the connecting pipes are connected with the circulation openings in a penetrating mode, and filter screens are slidably connected into the circulation openings. According to the engine oil filter, engine oil can be preliminarily filtered through the filter screen, the compressed connecting spring drives the filter screen to move reversely, impact force and vibration generated in the flowing process of the engine oil are relieved and absorbed through elastic reaction, and impact on filter paper caused by flowing of the engine oil can be relieved through the damping spring and the damper; contact or friction between the filter paper and the central pipe or the inner wall of the shell is prevented, and the position of the filter paper is kept.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, and in particular to a shock-absorbing oil filter. Background Technology

[0002] An oil strainer, also known as an oil filter, is a device used in diesel or internal combustion engines. Its main function is to filter impurities in the engine oil and ensure its cleanliness. During the operation of a diesel engine, the engine oil comes into contact with metal surfaces and generates friction, causing metal particles, contaminants, and other impurities to enter the engine oil. The oil strainer filters out these impurities, ensuring that the engine oil remains clean and preventing impurities from causing wear and damage to engine parts.

[0003] Currently, some existing oil filter strainers lack shock absorption structures. When oil enters the strainer, the impact force can easily cause the filter paper to rub against the central tube or housing, which may affect normal filtration. Furthermore, the impact force of the oil acting directly on the filter paper can easily cause it to break.

[0004] Therefore, those skilled in the art have provided a shock-absorbing oil filter to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a shock-absorbing oil filter. This filter can perform preliminary filtration of engine oil through a filter screen. A compressed connecting spring drives the filter screen to move in the opposite direction, using elasticity to reduce and absorb the impact and vibration generated during the oil flow. The shock-absorbing spring and shock absorber can reduce the impact of the oil flowing into the filter paper and prevent the filter paper from contacting or rubbing against the central tube or the inner wall of the housing, thus maintaining the position of the filter paper.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A shock-absorbing oil filter includes a housing, a central tube fixedly connected inside the housing, multiple buffer structures inside the housing, and a connecting structure inside the housing.

[0008] The buffer structure includes a connecting pipe, which is fixed to the upper end of the housing. Multiple flow ports are opened on the outer periphery of the upper end of the housing. The connecting pipe is connected to the flow ports. A filter screen is slidably connected inside the flow ports. Sliding blocks are fixedly connected to both sides of the filter screen. A connecting spring is fixedly connected to the lower end of the sliding blocks.

[0009] The above technical solution facilitates the delivery of the oil to be filtered into the filter by the connecting pipe and flow port, thereby preventing impurities in the oil from damaging the engine. The filter screen facilitates preliminary filtration of the oil, removing larger particles. The connecting spring generates a rebound force that resists the impact when the oil impacts the filter screen, thus mitigating and absorbing the impact and vibration generated during oil flow through elasticity, preventing the impact force from directly acting on the filter paper.

[0010] Furthermore, the connection structure includes filter paper, multiple connecting blocks are fixedly connected to the upper and lower ends of the inner shell, a fixing ring is fixedly connected to the upper and lower ends of the outer wall of the central tube, shock absorbers are fixedly connected to the side of the connecting block near the center of the shell and the four corners of the outer side of the fixing ring, and shock-absorbing springs are sleeved on the outer side of the shock absorber.

[0011] The above technical solution facilitates the filtration of impurities and contaminants such as metal particles, dust, carbon residue, and sludge in the engine oil, preventing these impurities from entering the engine and thus reducing wear on internal engine components and protecting the engine's normal operation. The shock absorber and damping spring also help to reduce the impact of the oil flowing into the filter paper, preventing it from breaking and preventing it from shifting and rubbing against the central tube or housing.

[0012] Furthermore, guide plates are fixedly connected to both sides inside the connecting pipe;

[0013] The above technical solution facilitates the smooth and stable flow of engine oil into the filter by setting up the guide plate.

[0014] Furthermore, grooves are provided on both sides inside the flow port, the sliding block slides within the grooves, and the lower end of the connecting spring is fixedly connected to the bottom of the groove.

[0015] The above technical solution allows the sliding block to be limited and slid within the groove.

[0016] Furthermore, a rubber pad is fixedly connected to the side of the shock-absorbing spring away from the connecting block and the fixing ring, and the filter paper is between the two rubber pads;

[0017] The above technical solution uses rubber pads to prevent the shock absorber and shock-absorbing spring from making hard contact with the filter paper.

[0018] Furthermore, an internal threaded interface is provided at the center of the upper end of the housing, and a protective ring is fixedly connected to the outer wall of the housing;

[0019] The above technical solution facilitates connection with connecting pipes through the internal thread interface, allowing for the transport of filtered oil, while the protective ring helps reduce collisions with other objects on the filter.

[0020] Furthermore, a connecting flange is fixedly connected to the lower end of the outer wall of the shell, and rubber rings are fixedly connected to both the inner and outer sides of the lower end of the connecting flange;

[0021] The above technical solution facilitates the fixed installation of the filter by setting the connecting flange, and the rubber ring helps to absorb and mitigate the vibration and impact generated at the connection.

[0022] The present invention has the following beneficial effects:

[0023] 1. The present invention discloses a shock-absorbing oil filter, which, compared with existing oil filters, reduces and absorbs impact force through the elastic movement of the filter screen. The filter screen performs preliminary filtration of the oil. The impact force when the oil flows in drives the filter screen to move downward. The compressed connecting spring drives the sliding block and the filter screen to move in the opposite direction, so that it generates a rebound force that resists the impact force. In this way, the elastic reaction reduces and absorbs the impact force and vibration generated during the oil flow.

[0024] 2. The shock-absorbing oil filter proposed in this utility model, compared with the existing oil filter, facilitates the prevention of filter paper displacement through the setting of shock-absorbing springs and shock absorbers. After the filter paper is displaced, the shock-absorbing springs and shock absorbers that are squeezed on one side will drive it back to its original position, absorbing and buffering the impact force when the oil flows in, reducing the impact on the filter paper, and helping to maintain an appropriate gap between the central tube, filter paper and housing to avoid them contacting each other or rubbing against each other. Attached Figure Description

[0025] Figure 1 This is an isometric view of a shock-absorbing oil filter proposed in this utility model;

[0026] Figure 2 This is a side sectional view of a shock-absorbing oil filter proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the filter screen of a shock-absorbing oil filter proposed in this utility model;

[0028] Figure 4 This is a axial sectional view of a shock-absorbing oil filter proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the rubber ring of a shock-absorbing oil filter proposed in this utility model.

[0030] Legend:

[0031] 1. Shell; 2. Protective ring; 3. Buffer structure; 301. Connecting pipe; 302. Flow port; 303. Guide plate; 304. Filter screen; 305. Slide groove; 306. Sliding block; 307. Connecting spring; 4. Connecting structure; 401. Filter paper; 402. Connecting block; 403. Fixing ring; 404. Shock-absorbing spring; 405. Rubber pad; 406. Shock absorber; 5. Central tube; 6. Internal thread interface; 7. Connecting flange; 8. Rubber ring. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1-3 One specific embodiment provided by this utility model:

[0034] A shock-absorbing oil filter includes a housing 1, a central tube 5 fixedly connected inside the housing 1, multiple buffer structures 3 inside the housing 1, and a connecting structure 4 inside the housing 1.

[0035] The buffer structure 3 includes a connecting pipe 301, which is fixed to the upper end of the housing 1. Both sides of the connecting pipe 301 are fixedly connected to the guide plate 303. Multiple flow ports 302 are opened on the outer periphery of the upper end of the housing 1. The connecting pipe 301 is connected to the flow ports 302. A filter screen 304 is slidably connected inside the flow port 302. Sliding blocks 306 are fixedly connected to both sides of the filter screen 304. A connecting spring 307 is fixedly connected to the lower end of the sliding block 306. Slide grooves 305 are opened on both sides of the flow port 302. The sliding block 306 slides within the slide groove 305. The lower end of the connecting spring 307 is fixedly connected to the bottom of the slide groove 305.

[0036] Specifically, the connecting pipe 301 and the flow port 302 facilitate the delivery of the oil to be filtered into the filter, thereby preventing impurities in the oil from damaging the engine. The guide plate 303 facilitates the smooth and stable entry of the oil into the filter. The filter screen 304 facilitates the initial filtration of the oil, removing larger particles. The connecting spring 307 facilitates the generation of a rebound force that resists the impact force when the oil impacts the filter screen 304, thereby mitigating and absorbing the impact force and vibration generated during the oil flow through elasticity, preventing the impact force from acting directly on the filter paper 401. The sliding groove 305 facilitates the limited sliding of the sliding block 306 within it.

[0037] Reference Figure 1 , Figure 2 and Figure 4 The connecting structure 4 includes filter paper 401. Multiple connecting blocks 402 are fixedly connected to the upper and lower ends of the inner shell 1. Fixed rings 403 are fixedly connected to the upper and lower ends of the outer wall of the central tube 5. Shock absorbers 406 are fixedly connected to the side of the connecting block 402 near the center of the shell 1 and to the four corners of the outer side of the fixed ring 403. Shock absorber springs 404 are sleeved on the outer side of the shock absorber 406. Rubber pads 405 are fixedly connected to the side of the shock absorber spring 404 away from the connecting block 402 and the fixed ring 403. Filter paper 401 is between two rubber pads 405.

[0038] Specifically, the filter paper 401 facilitates the filtration of impurities and contaminants such as metal particles, dust, carbon residue, and sludge in the engine oil, preventing these impurities from entering the engine and thus reducing wear on internal engine components and protecting the engine's normal operation. The shock absorber 406 and the damping spring 404 help to reduce the impact of the oil flowing into the filter paper 401, preventing damage to the filter paper 401 and preventing it from shifting and rubbing against the central tube 5 or the housing 1. The rubber pad 405 helps to prevent the shock absorber 406 and the damping spring 404 from making hard contact with the filter paper 401.

[0039] Reference Figure 1 and Figure 5 An internal threaded interface 6 is provided at the center of the upper end of the housing 1. A protective ring 2 is fixedly connected to the outer wall of the housing 1. A connecting flange 7 is fixedly connected to the lower end of the outer wall of the housing 1. Rubber rings 8 are fixedly connected to both the inner and outer sides of the lower end of the connecting flange 7.

[0040] Specifically, the internal threaded interface 6 facilitates connection with connecting pipes for transporting filtered oil, the protective ring 2 helps reduce collisions caused by other objects to the filter, the connecting flange 7 facilitates the fixed installation of the filter, and the rubber ring 8 helps absorb and mitigate vibrations and impacts generated at the connection.

[0041] Working principle: During use, the engine oil requiring filtration is fed into the filter collector through multiple connecting pipes 301. The oil flows into the flow port 302 and encounters the filter screen 304. The filter screen performs preliminary filtration, retaining larger impurities within the oil. The impact force of the flowing oil causes the filter screen 304 to move downwards, compressing the connecting spring 307. The compressed connecting spring 307 causes the sliding block 306 and the filter screen 304 to move in opposite directions, generating a rebound force that resists the impact force. This elastic reaction reduces and absorbs the impact force and vibration generated during oil flow, preventing the impact force from directly acting on the filter paper 401 and causing damage. After being filtered, the engine oil enters the filter housing and undergoes secondary filtration through filter paper 401. This filters out impurities and contaminants such as metal particles, dust, carbon residue, and sludge, preventing them from entering the engine. When the engine oil enters the filter housing, it may impact the filter paper 401, potentially causing it to shift. The compressed damping spring 404 and damper 406 will then push it back to its original position, helping to maintain the proper clearance between the central tube 5, the filter paper 401, and the housing 1. This prevents the filter paper 401 from contacting or rubbing against the inner wall of the central tube 5 or the housing 1. The filtered engine oil then enters the central tube 5, flows out into the connecting pipe, and enters the engine system for use.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock mounted engine oil strainer comprising a housing (1) characterised in that: The shell (1) is internally connected with a center pipe (5), the shell (1) is internally provided with a plurality of buffer structures (3), and the shell (1) is internally provided with a connecting structure (4); The buffer structure (3) comprises a connecting pipe (301), the connecting pipe (301) is fixed on the upper end of the shell (1), a plurality of flow-through openings (302) are formed in the outer periphery of the upper end of the shell (1), the connecting pipe (301) is in through connection with the flow-through openings (302), a filter screen (304) is in sliding connection inside the flow-through openings (302), sliding blocks (306) are fixedly connected on both sides of the filter screen (304), and connecting springs (307) are fixedly connected to the lower ends of the sliding blocks (306).

2. A shock mounted engine oil strainer according to claim 1 wherein: The connecting structure (4) comprises filter paper (401), a plurality of connecting blocks (402) are fixedly connected to the upper and lower ends inside the shell (1), fixed rings (403) are fixedly connected to the outer walls of the upper and lower ends of the center pipe (5), shock absorbers (406) are fixedly connected to the sides close to the center of the shell (1) of the connecting blocks (402) and the outer sides of the four corners of the fixed rings (403), and shock-absorbing springs (404) are sleeved outside the shock absorbers (406).

3. The shock absorbing oil strainer filter of claim 1 wherein: The connecting pipe (301) is internally fixedly connected with guide plates (303) on both sides.

4. The shock mounted oil strainer of claim 1 wherein: The flow-through openings (302) are internally provided with sliding grooves (305) on both sides, the sliding blocks (306) are limitingly and slidably arranged inside the sliding grooves (305), and the lower ends of the connecting springs (307) are fixedly connected to the inner bottoms of the sliding grooves (305).

5. The shock mounted oil strainer of claim 2 wherein: The shock-absorbing springs (404) are fixedly connected with rubber pads (405) on the sides away from the connecting blocks (402) and the fixed rings (403), and the filter paper (401) is between the two rubber pads (405).

6. A shock mounted engine oil strainer as claimed in claim 1 wherein: A female threaded interface (6) is arranged at the center of the upper end of the shell (1), and a protective ring (2) is fixedly connected to the outer wall of the shell (1).

7. The shock absorbing oil strainer filter of claim 1 wherein: A connecting flange (7) is fixedly connected to the lower end of the outer wall of the shell (1), and rubber rings (8) are fixedly connected to the inner and outer sides of the lower end of the connecting flange (7).

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